 Quartz heaters --Quartz rod |
|
| |
【Back to quartz heaters】
This clear quartz rod has high purity, elevated temperature characteristics and low coefficient of thermal expansion, It serves as the material of the bridging rod for single and halogen lamps, fiber optic lighting, quartz making, wafer carriers and push rods in semiconductor industry.
※Features
The material is similar to GE214 ,high purity,strong heat resistance and low coefficient of thermal expansion
※Application
It is widely used for filament bridging rod, semiconductor,quartz wielding rod, etc.
※ Dimensional Tolerance
Range of OD |
OD |
≤6mm |
±2.0% |
6.00-15.00mm |
±1.25% |
15.00-20.00mm |
±1.25% |
20.00-25.00mm |
±1.25% |
25.00-30.00mm |
±1.35% |
30.00-50.00mm |
±1.5% |
※ Chemical Composition Unit: ppm
Cr |
Ge |
Fe |
Mg |
Ti |
Ca |
Al |
Na |
Li |
K |
OH |
＜ 0.5 |
0.5 |
1.2 |
0.8 |
2.0 |
2.0 |
20 |
1.2 |
0.5 |
1.5 |
＜ 25 |
※ Physical Properties
Density 20 ℃ kg.m -3 (×10 3 ) |
2.2 |
Coefficient of expansion 25-300 ℃ ℃ -1 (×10 -6 ) |
0.56 |
Softening point ℃ |
1670 |
Annealing point ℃ |
1210 |
Strain point ℃ |
1110 |
Youngs modulus Pa |
7.3×10 5 |
